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Crystal structure determination of AlVMoO7 from X-ray powder diffraction data

✍ Scribed by K. Knorr; P. Jakubus; G. Dabrowska; M. Kurzawa

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
547 KB
Volume
35
Category
Article
ISSN
0992-4361

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✦ Synopsis

The structure of AlVMoOr was solved by direct methods from high resolution X-ray powder diffraction data and refined by the Rietveld method. The lattice constants are a=5.3763(3)& b=8.1644(3)A and c=12.7312A. S pace group Pmcn followed from the systematic extinctions and was confirmed by the successful structure solution. Aluminum is octahedrally coordinated by oxygen, whereas vanadium possesses a distorted pyramidal coordination and molybdenum is tetrahedrally coordinated by oxygen atoms. A three dimensional framework structure results from corner and edge connection of the coordination polyhedra. VOs pyramids are edge linked to infinite (VOZ), chains. Therefore, AlVMoOr can be classified as a polyvanadate.

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